[3.13] pythongh-142278: Add granular change detection for platforms in CI (pythonGH-142350)

(cherry picked from commit 9e3d7cd)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: StanFromIreland

.github/workflows/build.yml

@@ -241,7 +241,7 @@ jobs:
       macOS
       ${{ fromJSON(matrix.free-threading) && '(free-threading)' || '' }}
     needs: build-context
-    if: needs.build-context.outputs.run-tests == 'true'
+    if: needs.build-context.outputs.run-macos == 'true'
     strategy:
       fail-fast: false
       matrix:
@@ -266,7 +266,7 @@ jobs:
       Ubuntu
       ${{ fromJSON(matrix.free-threading) && '(free-threading)' || '' }}
     needs: build-context
-    if: needs.build-context.outputs.run-tests == 'true'
+    if: needs.build-context.outputs.run-ubuntu == 'true'
     strategy:
       fail-fast: false
       matrix:
@@ -282,7 +282,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     timeout-minutes: 60
     needs: build-context
-    if: needs.build-context.outputs.run-tests == 'true'
+    if: needs.build-context.outputs.run-ubuntu == 'true'
     strategy:
       fail-fast: false
       matrix:
@@ -335,7 +335,7 @@ jobs:
   build-android:
     name: Android (${{ matrix.arch }})
     needs: build-context
-    if: needs.build-context.outputs.run-tests == 'true'
+    if: needs.build-context.outputs.run-android == 'true'
     timeout-minutes: 60
     strategy:
       fail-fast: false
@@ -357,15 +357,15 @@ jobs:
   build-wasi:
     name: 'WASI'
     needs: build-context
-    if: needs.build-context.outputs.run-tests == 'true'
+    if: needs.build-context.outputs.run-wasi == 'true'
     uses: ./.github/workflows/reusable-wasi.yml
 
   test-hypothesis:
     name: "Hypothesis tests on Ubuntu"
     runs-on: ubuntu-24.04
     timeout-minutes: 60
     needs: build-context
-    if: needs.build-context.outputs.run-tests == 'true'
+    if: needs.build-context.outputs.run-ubuntu == 'true'
     env:
       OPENSSL_VER: 3.0.18
       PYTHONSTRICTEXTENSIONBUILD: 1
@@ -471,7 +471,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     timeout-minutes: 60
     needs: build-context
-    if: needs.build-context.outputs.run-tests == 'true'
+    if: needs.build-context.outputs.run-ubuntu == 'true'
     strategy:
       fail-fast: false
       matrix:
@@ -524,7 +524,7 @@ jobs:
     # ${{ '' } is a hack to nest jobs under the same sidebar category.
     name: Sanitizers${{ '' }}  # zizmor: ignore[obfuscation]
     needs: build-context
-    if: needs.build-context.outputs.run-tests == 'true'
+    if: needs.build-context.outputs.run-ubuntu == 'true'
     strategy:
       fail-fast: false
       matrix:
@@ -612,41 +612,29 @@ jobs:
           test-hypothesis,
           cifuzz,
         allowed-skips: >-
+          ${{ !fromJSON(needs.build-context.outputs.run-docs) && 'check-docs,' || '' }}
           ${{
-            !fromJSON(needs.build-context.outputs.run-docs)
+            needs.build-context.outputs.run-tests != 'true'
             && '
-            check-docs,
+            check-autoconf-regen,
+            check-generated-files,
             '
             || ''
           }}
+          ${{ !fromJSON(needs.build-context.outputs.run-windows-tests) && 'build-windows,' || '' }}
+          ${{ !fromJSON(needs.build-context.outputs.run-ci-fuzz) && 'cifuzz,' || '' }}
+          ${{ !fromJSON(needs.build-context.outputs.run-macos) && 'build-macos,' || '' }}
           ${{
-            needs.build-context.outputs.run-tests != 'true'
+            !fromJSON(needs.build-context.outputs.run-ubuntu)
             && '
-            check-autoconf-regen,
-            check-generated-files,
-            build-macos,
             build-ubuntu,
             build-ubuntu-ssltests,
-            build-android,
-            build-wasi,
             test-hypothesis,
             build-asan,
             build-san,
             '
             || ''
           }}
-          ${{
-            !fromJSON(needs.build-context.outputs.run-windows-tests)
-            && '
-            build-windows,
-            '
-            || ''
-          }}
-          ${{
-            !fromJSON(needs.build-context.outputs.run-ci-fuzz)
-            && '
-            cifuzz,
-            '
-            || ''
-          }}
+          ${{ !fromJSON(needs.build-context.outputs.run-android) && 'build-android,' || '' }}
+          ${{ !fromJSON(needs.build-context.outputs.run-wasi) && 'build-wasi,' || '' }}
         jobs: ${{ toJSON(needs) }}

.github/workflows/reusable-context.yml

@@ -17,31 +17,51 @@ on:  # yamllint disable-line rule:truthy
       #        || 'falsy-branch'
       #   }}
       #
+      run-android:
+        description: Whether to run the Android tests
+        value: ${{ jobs.compute-changes.outputs.run-android }}  # bool
+      run-ci-fuzz:
+        description: Whether to run the CIFuzz job
+        value: ${{ jobs.compute-changes.outputs.run-ci-fuzz }}  # bool
       run-docs:
         description: Whether to build the docs
         value: ${{ jobs.compute-changes.outputs.run-docs }}  # bool
+      run-ios:
+        description: Whether to run the iOS tests
+        value: ${{ jobs.compute-changes.outputs.run-ios }}  # bool
+      run-macos:
+        description: Whether to run the macOS tests
+        value: ${{ jobs.compute-changes.outputs.run-macos }}  # bool
       run-tests:
         description: Whether to run the regular tests
         value: ${{ jobs.compute-changes.outputs.run-tests  }}  # bool
-      run-windows-tests:
-        description: Whether to run the Windows tests
-        value: ${{ jobs.compute-changes.outputs.run-windows-tests }}  # bool
+      run-ubuntu:
+        description: Whether to run the Ubuntu tests
+        value: ${{ jobs.compute-changes.outputs.run-ubuntu }}  # bool
+      run-wasi:
+        description: Whether to run the WASI tests
+        value: ${{ jobs.compute-changes.outputs.run-wasi }}  # bool
       run-windows-msi:
         description: Whether to run the MSI installer smoke tests
         value: ${{ jobs.compute-changes.outputs.run-windows-msi }}  # bool
-      run-ci-fuzz:
-        description: Whether to run the CIFuzz job
-        value: ${{ jobs.compute-changes.outputs.run-ci-fuzz }}  # bool
+      run-windows-tests:
+        description: Whether to run the Windows tests
+        value: ${{ jobs.compute-changes.outputs.run-windows-tests }}  # bool
 
 jobs:
   compute-changes:
     name: Create context from changed files
     runs-on: ubuntu-latest
     timeout-minutes: 10
     outputs:
+      run-android: ${{ steps.changes.outputs.run-android }}
       run-ci-fuzz: ${{ steps.changes.outputs.run-ci-fuzz }}
       run-docs: ${{ steps.changes.outputs.run-docs }}
+      run-ios: ${{ steps.changes.outputs.run-ios }}
+      run-macos: ${{ steps.changes.outputs.run-macos }}
       run-tests: ${{ steps.changes.outputs.run-tests }}
+      run-ubuntu: ${{ steps.changes.outputs.run-ubuntu }}
+      run-wasi: ${{ steps.changes.outputs.run-wasi }}
       run-windows-msi: ${{ steps.changes.outputs.run-windows-msi }}
       run-windows-tests: ${{ steps.changes.outputs.run-windows-tests }}
     steps: